Fast-growing algae coat a bronze sculpture called Christ of the Abyss along with coral reefs throughout the Florida Keys. The Key Largo attraction for divers and snorkelers gets scrubbed from time to time, but the growth quickly reappears.

Fast-growing algae coat a bronze sculpture called Christ of the Abyss along with coral reefs throughout the Florida Keys. The Key Largo attraction for divers and snorkelers gets scrubbed from time to time, but the growth quickly reappears. (Rick Loomis / LAT)

Fast-growing algae coat a bronze sculpture called Christ of the Abyss along with coral reefs throughout the Florida Keys. The Key Largo attraction for divers and snorkelers gets scrubbed from time to time, but the growth quickly reappears.